block/rnbd-srv: Check for unlikely string overflow
Since "dev_search_path" can technically be as large as PATH_MAX,
there was a risk of truncation when copying it and a second string
into "full_path" since it was also PATH_MAX sized. The W=1 builds were
reporting this warning:
drivers/block/rnbd/rnbd-srv.c: In function 'process_msg_open.isra':
drivers/block/rnbd/rnbd-srv.c:616:51: warning: '%s' directive output may be truncated writing up to 254 bytes into a region of size between 0 and 4095 [-Wformat-truncation=]
616 | snprintf(full_path, PATH_MAX, "%s/%s",
| ^~
In function 'rnbd_srv_get_full_path',
inlined from 'process_msg_open.isra' at drivers/block/rnbd/rnbd-srv.c:721:14: drivers/block/rnbd/rnbd-srv.c:616:17: note: 'snprintf' output between 2 and 4351 bytes into a destination of size 4096
616 | snprintf(full_path, PATH_MAX, "%s/%s",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
617 | dev_search_path, dev_name);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
To fix this, unconditionally check for truncation (as was already done
for the case where "%SESSNAME%" was present).
Metrics
Affected Vendors & Products
Source | ID | Title |
---|---|---|
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DLA-3842-1 | linux-5.10 security update |
![]() |
DSA-5658-1 | linux security update |
![]() |
DSA-5681-1 | linux security update |
![]() |
USN-6766-1 | Linux kernel vulnerabilities |
![]() |
USN-6766-2 | Linux kernel vulnerabilities |
![]() |
USN-6766-3 | Linux kernel (AWS) vulnerabilities |
![]() |
USN-6795-1 | Linux kernel (Intel IoTG) vulnerabilities |
![]() |
USN-6818-1 | Linux kernel vulnerabilities |
![]() |
USN-6818-2 | Linux kernel (ARM laptop) vulnerabilities |
![]() |
USN-6818-3 | Linux kernel (NVIDIA) vulnerabilities |
![]() |
USN-6818-4 | Linux kernel (HWE) vulnerabilities |
![]() |
USN-6819-1 | Linux kernel vulnerabilities |
![]() |
USN-6819-2 | Linux kernel vulnerabilities |
![]() |
USN-6819-3 | Linux kernel (OEM) vulnerabilities |
![]() |
USN-6819-4 | Linux kernel (Oracle) vulnerabilities |
![]() |
USN-6828-1 | Linux kernel (Intel IoTG) vulnerabilities |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Fri, 04 Apr 2025 15:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Debian
Debian debian Linux Linux Linux linux Kernel |
|
Weaknesses | NVD-CWE-noinfo | |
CPEs | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
|
Vendors & Products |
Debian
Debian debian Linux Linux Linux linux Kernel |
Fri, 22 Nov 2024 12:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
References |
|
Wed, 06 Nov 2024 22:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
cvssV3_1
|
cvssV3_1
|
Mon, 04 Nov 2024 13:45:00 +0000
Type | Values Removed | Values Added |
---|---|---|
References |
|
Mon, 04 Nov 2024 13:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|

Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-20T14:27:29.992Z
Reserved: 2024-03-06T09:52:12.089Z
Link: CVE-2023-52618

Updated: 2024-08-02T23:03:21.288Z

Status : Analyzed
Published: 2024-03-18T11:15:09.110
Modified: 2025-04-04T14:51:32.453
Link: CVE-2023-52618


No data.